Membrane feeding mechanism for meal box cover

Abstract

The utility model relates to the technical field of lunch box cover packaging, in particular to a lunch box cover film feeding mechanism which comprises a machine frame. The rack is provided with a material roll placed in the transverse direction. The rack is provided with a left fixed seat and a right fixed seat which are oppositely arranged; the rack is provided with a conveying plate in the transverse direction. A conveying belt is movably arranged on the conveying plate in the transverse direction; the rack is provided with a left fixing seat and a right fixing seat; the left fixed seat is provided with a left steering plate; the right fixing seat is provided with a right steering plate opposite to the left steering plate; the left steering plate and the right steering plate are arranged on the two sides of the conveying plate correspondingly. And the rack is provided with a guide assembly among the material coil, the left steering plate and the right steering plate. When the folding film is used, only the top, the front end and the rear end of the folding film on the two sides need to be subjected to heat sealing, heat sealing does not need to be conducted on the bottom of the folding film, cost can be saved, and working efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lunch box and meal cover packaging, in particular to a film-laying mechanism for a lunch box and meal cover. Background Art

[0002] Disposable lunch boxes and lids are widely used in the food service industry due to their convenience. To improve production efficiency and reduce costs, manufacturers typically use automated production lines for large-scale production. On these lines, the boxes and lids are bagged after injection molding. To automate this process, the boxes and lids are sealed with packaging film.

[0003] To ensure a tight seal, automated packaging machines require heat sealing at the top, front, back, and bottom of the film. This requirement for heat sealing at multiple locations not only increases packaging time but can also lead to longer wait times during the packaging process, reducing overall production line efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a film-laying mechanism for a lunch box lid in view of the above-mentioned deficiencies in the prior art.

[0005] The purpose of the utility model is achieved through the following technical solutions: a film-laying mechanism for a lunch box and a lunch cover, comprising a frame; the frame is provided with a material roll placed in a transverse direction; the frame is provided with a left fixed seat and a right fixed seat arranged opposite to each other; the frame is provided with a transmission plate in the transverse direction; the transmission plate is provided with a transmission belt movable in the transverse direction;

[0006] The frame is provided with a left fixing seat and a right fixing seat; the left fixing seat is provided with a left steering plate; the right fixing seat is provided with a right steering plate arranged opposite to the left steering plate; the left steering plate and the right steering plate are respectively arranged on both sides of the transmission plate;

[0007] The frame is provided with a guide assembly between the material roll, the left steering plate and the right steering plate.

[0008] The present invention is further configured such that the frame is provided with a distance adjustment component for adjusting the distance between the left fixing seat and the right fixing seat.

[0009] The utility model is further configured as follows: the pitch adjusting assembly includes a pitch adjusting screw which is rotated on the frame along the longitudinal direction and a pitch adjusting guide rail which is provided on the frame along the longitudinal direction; the two ends of the pitch adjusting screw are respectively provided with a left external thread and a right external thread with opposite rotation directions; the left external thread and the right external thread are respectively sleeved with a left nut and a right nut; the left nut is connected to the left fixing seat; the right nut is connected to the right fixing seat; the left fixing seat is provided with a left slider which is slidably connected to the pitch adjusting guide rail; the right fixing seat is provided with a right slider which is slidably connected to the pitch adjusting guide rail.

[0010] The present invention is further configured such that the pitch adjustment assembly further includes a pitch adjustment wheel connected to the pitch adjustment screw.

[0011] The utility model is further configured such that the frame is provided with a positioning rod along the transverse direction; both ends of the positioning rod are provided with a first positioning arm and a second positioning arm respectively; and the material roll is arranged between the first positioning arm and the second positioning arm.

[0012] The utility model is further configured such that the first positioning arm and the second positioning arm are both connected with an adjustment block; the adjustment block is slidably arranged on the positioning rod; the adjustment block is threadedly connected with a locking member for locking the adjustment block and the positioning rod.

[0013] The utility model is further configured such that the guide assembly includes a left film-separating roller and a right film-separating roller which are arranged on the frame and rotate along the transverse direction; the left film-separating roller and the right film-separating roller are arranged opposite to each other; the left film-separating roller and the right film-separating roller are arranged at the bottom of the left steering plate and the bottom of the right steering plate.

[0014] The utility model is further configured as follows: the frame is provided with a driving roller when rotating in the transverse direction; the frame is provided with a driving motor; the output end of the driving motor is connected to the driving roller; the frame is provided with a driven roller when rotating in the transverse direction; the driving roller and the driven roller are arranged opposite to each other; the driving roller and the driven roller are both arranged at the bottom of the material roll.

[0015] The utility model is further configured such that the guide assembly further comprises a first guide roller, a second guide roller, a third guide roller and a fourth guide roller which are arranged on the frame and rotate in the transverse direction; the first guide roller is arranged between the driving roller and the material roll; the second guide roller is arranged at the bottom of the driving roller; the third guide roller is arranged at the bottom of the second guide roller; the fourth guide roller is arranged at the bottom of the left film separation roller;

[0016] The folding film of the material roll passes through the first guide roller, between the driving roller and the driven roller, the second guide roller, the third guide roller and the fourth guide roller in sequence, and is then separated by the left film separation roller and the right film separation roller, so that a part of the folding film is bent by the left steering plate, and the other part of the folding film is bent by the right steering plate.

[0017] The present invention is further configured such that the cross-sectional shape of the left steering plate and the cross-sectional shape of the right steering plate are both right triangles.

[0018] The beneficial effects of the present invention are as follows: when in use, the present invention only needs to heat-seal the top, front end and rear end of the folded films on both sides, and there is no need to heat-seal the bottom of the folded films, which can save costs and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other drawings based on the following drawings without making any creative effort.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0022] Figure 3 It is a structural diagram of the utility model from another perspective;

[0023] Figure 4 It is a cross-sectional view of the utility model;

[0024] Wherein: 1. Frame; 11. Left film-separating roller; 12. Right film-separating roller; 13. Driving roller; 14. Driven roller; 2. Material roll; 31. Left fixed seat; 32. Right fixed seat; 33. Left steering plate; 34. Right steering plate; 4. Transmission plate; 41. Transmission belt; 5. Pitch-adjusting screw; 51. Left nut; 52. Right nut; 53. Pitch-adjusting guide rail; 54. Left slider; 55. Right slider; 56. Pitch-adjusting wheel; 6. Positioning rod; 61. First positioning arm; 62. Second positioning arm; 63. Adjusting block; 64. Locking piece; 71. First guide roller; 72. Second guide roller; 73. Third guide roller; 74. Fourth guide roller. DETAILED DESCRIPTION

[0025] The present invention will be further described with reference to the following embodiments.

[0026] Depend on Figures 1 to 4 It can be seen that the film-coating mechanism for a lunch box and a meal cover described in this embodiment includes a frame 1; the frame 1 is provided with a material roll 2 placed in the transverse direction; the frame 1 is provided with a left fixed seat 31 and a right fixed seat 32 arranged opposite to each other; the frame 1 is provided with a transmission plate 4 in the transverse direction; the transmission plate 4 is provided with a transmission belt 41 movably provided in the transverse direction; the frame 1 is provided with a left fixed seat 31 and a right fixed seat 32; the left fixed seat 31 is provided with a left deflection plate 33; the right fixed seat 32 is provided with a right deflection plate 34 arranged opposite to the left deflection plate 33; the left deflection plate 33 and the right deflection plate 34 are respectively arranged on both sides of the transmission plate 4; the frame 1 is provided with a guide assembly between the material roll 2, the left deflection plate 33 and the right deflection plate 34. The present embodiment describes a film-coating mechanism for a lunch box lid, wherein the guide assembly includes a left film-coating roller 11 and a right film-coating roller 12 which are arranged on a frame 1 and rotate along a transverse direction; the left film-coating roller 11 and the right film-coating roller 12 are arranged opposite to each other; the left film-coating roller 11 and the right film-coating roller 12 are arranged at the bottom of a left steering plate 33 and the bottom of a right steering plate 34.

[0027] Specifically, in the film-coating mechanism for the lunch box and the lunch cover described in this embodiment, a folded film is wound on the material roll 2, and the folded film is folded from the middle of the film body to form a structure that is symmetrical on both sides and connected in the middle.

[0028] When in use, the folded film on the material roll 2 is transmitted between the left film separation roller 11 and the right film separation roller 12 through the guide assembly, and the film separation process is performed at the left film separation roller 11 and the right film separation roller 12. After the folded film is separated, a part of the folded film is bent inward from the outer side of the left deflection plate 33 along the oblique edge of the left deflection plate 33, and the other part of the folded film is bent inward from the outer side of the right deflection plate 34 along the oblique edge of the right deflection plate 34, and the connection between the folded films on both sides passes through the bottom of the transmission plate 4, so that a part of the folded film is transmitted in the transverse direction and the other part of the folded film is transmitted in the transverse direction; then the lunch box or lunch cover is placed on the conveyor belt 41, so that the lunch box or lunch cover can move in the folded films on both sides. Since the connection between the folded films on both sides is located at the bottom of the lunch box or lunch cover, when heat sealing, only the top, front end and rear end of the folded films on both sides need to be heat sealed, and there is no need to heat seal the bottom of the folded film, which can save costs and improve work efficiency.

[0029] In the present embodiment, a film-applying mechanism for a lunch box lid is provided on the frame 1, and the frame 1 is provided with a distance-adjusting assembly for adjusting the distance between the left fixed seat 31 and the right fixed seat 32. The distance-adjusting assembly comprises a distance-adjusting screw 5 rotatably mounted on the frame 1 along the longitudinal direction, and a distance-adjusting guide rail 53 mounted on the frame 1 along the longitudinal direction. The distance-adjusting screw 5 has a left external thread and a right external thread with opposite rotation directions at each end. The left external thread and the right external thread are respectively fitted with a left nut 51 and a right nut 52. The left nut 51 is connected to the left fixed seat 31, and the right nut 52 is connected to the right fixed seat 32. The left fixed seat 31 is provided with a left slider 54 slidably connected to the distance-adjusting guide rail 53, and the right fixed seat 32 is provided with a right slider 55 slidably connected to the distance-adjusting guide rail 53. The distance-adjusting assembly further comprises a distance-adjusting wheel 56 connected to the distance-adjusting screw 5, and the distance-adjusting wheel 56 is a distance-adjusting handwheel.

[0030] Specifically, when it is necessary to match lunch boxes or lunch lids of different sizes, the pitch adjusting wheel is rotated to rotate the pitch adjusting screw 5. Since the two ends of the pitch adjusting screw 5 are provided with a left external thread and a right external thread with opposite rotation directions, when the pitch adjusting screw 5 rotates, it can drive the left fixing seat 31 and the right fixing seat 32 to move closer to or away from each other along the pitch adjusting guide rail 53.

[0031] In the lunch box and lid film-applying mechanism described in this embodiment, the frame 1 is provided with a positioning rod 6 in the transverse direction; a first positioning arm 61 and a second positioning arm 62 are provided at each end of the positioning rod 6; and the material roll 2 is arranged between the first positioning arm 61 and the second positioning arm 62. Specifically, this arrangement can fix the position of the material roll 2.

[0032] In the film-applying mechanism for a lunch box lid described in this embodiment, both the first positioning arm 61 and the second positioning arm 62 are connected to an adjustment block 63; the adjustment block 63 is slidably mounted on the positioning rod 6; and the adjustment block 63 is threadedly connected to a locking member 64 for locking the adjustment block 63 to the positioning rod 6. Specifically, by rotating the locking member 64, the adjustment block 63 is fixed or unlocked from the positioning rod 6, allowing the adjustment block 63 to be moved according to the size of the material roll 2, thereby adjusting the distance between the first positioning arm 61 and the second positioning arm 62.

[0033] In this embodiment, a film-loading mechanism for a lunch box or meal cover is described. The frame 1 is provided with a drive roller 13 for transverse rotation. The frame 1 is provided with a drive motor (not shown in the figure). The output end of the drive motor is connected to the drive roller 13. The frame 1 is provided with a driven roller 14 for transverse rotation. The drive roller 13 and the driven roller 14 are arranged opposite each other. Both the drive roller 13 and the driven roller 14 are located at the bottom of the material roll 2. Specifically, this arrangement facilitates driving the folded film for transport.

[0034] In the present embodiment, a film-forming mechanism for a lunch box and a meal cover is described, wherein the guide assembly further comprises a first guide roller 71, a second guide roller 72, a third guide roller 73 and a fourth guide roller 74 which are arranged on the frame 1 in a lateral direction and rotate; the first guide roller 71 is arranged between the driving roller 13 and the material roll 2; the second guide roller 72 is arranged at the bottom of the driving roller 13; the third guide roller 73 is arranged at the bottom of the second guide roller 72; the fourth guide roller 74 is arranged at the bottom of the left film-forming roller 11;

[0035] The folding film of the material roll 2 passes through the first guide roller 71, between the driving roller 13 and the driven roller 14, the second guide roller 72, the third guide roller 73 and the fourth guide roller 74 in sequence, and is then separated by the left film separation roller 11 and the right film separation roller 12, so that a part of the folding film is bent by the left steering plate 33, and the other part of the folding film is bent by the right steering plate 34.

[0036] In the film-loading mechanism for a lunch box and a meal cover of this embodiment, the cross-sectional shape of the left deflection plate 33 and the cross-sectional shape of the right deflection plate 34 are both right triangles.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A film-forming mechanism for a lunch box lid, characterized by: The machine comprises a frame; the frame is provided with a material roll placed in a transverse direction; the frame is provided with a left fixed seat and a right fixed seat arranged opposite to each other; the frame is provided with a transmission plate in the transverse direction; the transmission plate is provided with a transmission belt movable in the transverse direction; The frame is provided with a left fixing seat and a right fixing seat; the left fixing seat is provided with a left steering plate; the right fixing seat is provided with a right steering plate arranged opposite to the left steering plate; the left steering plate and the right steering plate are respectively arranged on both sides of the transmission plate; The frame is provided with a guide assembly between the material roll, the left steering plate and the right steering plate.

2. The film-laying mechanism for a lunch box lid according to claim 1, characterized in that: The frame is provided with a distance adjustment component for adjusting the distance between the left fixing seat and the right fixing seat.

3. The film-laying mechanism for a lunch box lid according to claim 2, characterized in that: The pitch-adjusting assembly includes a pitch-adjusting screw that is rotated on the frame along the longitudinal direction and a pitch-adjusting guide rail that is provided on the frame along the longitudinal direction; the two ends of the pitch-adjusting screw are respectively provided with a left external thread and a right external thread with opposite rotation directions; the left external thread and the right external thread are respectively sleeved with a left nut and a right nut; the left nut is connected to the left fixing seat; the right nut is connected to the right fixing seat; the left fixing seat is provided with a left slider that is slidably connected to the pitch-adjusting guide rail; the right fixing seat is provided with a right slider that is slidably connected to the pitch-adjusting guide rail.

4. The film-laying mechanism for a lunch box lid according to claim 3, characterized in that: The pitch adjustment assembly also includes a pitch adjustment wheel connected to the pitch adjustment screw.

5. The film-laying mechanism for a lunch box lid according to claim 1, characterized in that: The frame is provided with a positioning rod along the transverse direction; the two ends of the positioning rod are respectively provided with a first positioning arm and a second positioning arm; the material roll is arranged between the first positioning arm and the second positioning arm.

6. The film-laying mechanism for a lunch box lid according to claim 5, characterized in that: The first positioning arm and the second positioning arm are both connected with an adjustment block; the adjustment block is slidably arranged on the positioning rod; the adjustment block is threadedly connected with a locking piece for locking the adjustment block and the positioning rod.

7. The film-laying mechanism for a lunch box lid according to claim 1, characterized in that: The guide assembly includes a left film separation roller and a right film separation roller which are arranged on the frame and rotate along the horizontal direction; the left film separation roller and the right film separation roller are arranged opposite to each other; the left film separation roller and the right film separation roller are arranged at the bottom of the left steering plate and the bottom of the right steering plate.

8. The film-laying mechanism for a lunch box lid according to claim 7, characterized in that: The frame is provided with a driving roller when rotating in the transverse direction; the frame is provided with a driving motor; the output end of the driving motor is connected to the driving roller; the frame is provided with a driven roller when rotating in the transverse direction; the driving roller and the driven roller are arranged opposite to each other; the driving roller and the driven roller are both arranged at the bottom of the material roll.

9. The film-laying mechanism for a lunch box lid according to claim 8, characterized in that: The guide assembly further includes a first guide roller, a second guide roller, a third guide roller and a fourth guide roller which are arranged on the frame and rotate in the transverse direction; the first guide roller is arranged between the driving roller and the material roll; the second guide roller is arranged at the bottom of the driving roller; the third guide roller is arranged at the bottom of the second guide roller; the fourth guide roller is arranged at the bottom of the left film separation roller; The folding film of the material roll passes through the first guide roller, between the driving roller and the driven roller, the second guide roller, the third guide roller and the fourth guide roller in sequence, and is then separated by the left film separation roller and the right film separation roller, so that a part of the folding film is bent by the left steering plate, and the other part of the folding film is bent by the right steering plate.

10. The film-laying mechanism for a lunch box lid according to claim 1, characterized in that: The cross-sectional shape of the left steering plate and the cross-sectional shape of the right steering plate are both right triangles.

Images