JPH0685206U - Packaging equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a packaging device having a simple structure and using a heat-welded sheet without waste. [Structure] An object to be packaged is wrapped with one heat-welding sheet, and the sheet is welded from the top and bottom at the end thereof.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a packaging device that uses a heat-welded sheet.

[0002]

[Prior art]

 A packaging device using a heat-welded sheet is known. However, in the conventional device, the raw material of the heat-welding sheet requires one for each of the two sides of the welding, that is, two raw materials are required, and the sheet processing means for each welding sheet is further required. The structure was inevitable.

[0003]

[Problems to be solved by the device]

 This invention intends to provide a packaging device which solves the above-mentioned problems and which has a simple structure and can use a heat-welding sheet without waste.

[0004]

[Means for Solving the Problems]

 Hereinafter, with reference to FIG. 1, the packaging apparatus 1 of the present invention will be described together with its operation. A well-known heat-welding sheet S is unwound from the sheet roll 3 and supplied to the feeding roller 2, and is fed. Further, the heat-welded sheet S is rolled out or pulled back by the winding roller 4. A stacking means 6 for supplying and stacking the objects W to be encapsulated is provided between the loosened heat-welded sheets S. Further, a sheet swinging means 7 is provided so that both ends of the heat-welded sheet S are overlapped, a heater and a cutter means 8 for welding and cutting the overlapped heat-welded sheet S are provided, and finally cut. A pull-out roller 9 for pulling out the end of the heat-welded sheet S is provided.

[0005]

【Example】

 The feeding roller 2 is a known pinch roller in which the heat-welding sheet S is sandwiched between two rollers and the heat-welding sheet S is fed at a constant speed. The winding roller 4 is a pinch roller that sandwiches the heat-welding sheet S between two rollers in the same manner, and the heat-welding sheet S is fed in the normal rotation direction and the heat-welding sheet S is pulled back in the reverse direction. Is configured.

A dancer roller 5 is provided between the feeding roller 2 and the winding roller 4. The dancer roller 5 has a known structure for treating the slack of the heat-welded sheet S that is fed out and pulled back by the winding roller 4. The stacking step 6 receives a slope plate 6a that can roll a package W (a cylindrical product having a uniform length in this embodiment) and a package W that has rolled down the slope plate 6a. It consists of an L-shaped support plate 6b that is stopped and stacked. The receiving plate 6b is rotatably supported by a shaft 6c at the top thereof, and by rotating the receiving plate 6b, the stacked articles W can be inverted as shown by the phantom line.

The sheet swinging means 7 has a pinch roller 7b at the tip of an arm 7a that can swing left and right so that the position of the heat-welded sheet S with respect to the stacking means 6 can be changed to the left side or the right side in the figure. It is provided. The heater and cutter means 8 comprises a fixed heater 8a, a movable heater 8b, a movable cutter 8c and a movable frame 8d. The movable frame 8d is fixed to the tip of the rod of the main air cylinder 8e, and is lowered from the position shown in the figure to the upper end of the fixed heater 8a by the extension of the main air cylinder 8e. The moving side heater 8b is attached to the tip of the rod of the small air cylinder 8f attached to the moving frame 8d, and the stopper 8g of the moving side heater 8b hits the moving frame 8d by the extension of the small air cylinder 8f. Descend to. The moving side cutter 8c is attached to the rod of the air cylinder 8h integrated with the fixed side heater 8a, and the moving side cutter 8c is configured to project above the fixed side heater 8a by the extension of the air cylinder 8h. ing.

A pull-out roller 9 serving as a pinch roller is provided below the heater and cutter means 8, and a take-up roller 10 for taking up the heat-welded sheet S is provided via the draw-out roller 9.

Next, the operation of the above embodiment will be described. First, a heat-welding sheet S having a width larger than the width of the article W to be packaged is prepared on the sheet roll 3, spread as shown in the drawing, and the heat-welding sheet S is appropriately loosened by the winding roller 4. . The seat swinging means 7 is swung to the right as shown.

Then, the articles W to be packaged are rolled from the slope plate 6a and stacked on the receiving plate 6b as illustrated. Then, the seat swinging means 7 is swung to the left side in the drawing. Next, when the main air cylinder 8e is extended while pulling the heat-welding sheet S upward by the winding roller 4, the moving frame 8d descends and the upper and lower heat-welding sheets S are placed between the fixed side heater 8a. Sandwich. Further, the small air cylinder 8f is extended to lower the moving side heater 8b. As a result, the upper and lower heat-welded sheets S are welded while the object W to be packaged is drawn. When the air cylinder 8h is further extended and the moving side cutter 8c is pushed up, the heat welding sheet S is cut through the gaps between the fixed side heater 8a and the moving side heater 8b.

After that, the heat-welding sheet S is slightly wound by the winding roller 10 for the next packaging. The wound heat-welding sheet S has a shape as illustrated. On the other hand, the stacking means 6 is rotated by 90 degrees, transferred onto the pallet P, and sent to the next stroke. In the next step, the extra heat-welding sheets S on both sides of the article W to be packaged are folded. This folding technique is well known and will not be described in detail. For example, the heat-sealed sheet S wound around the body may be vacuum-sucked inside the extra portions at both ends to cut the heat-welded sheet from above and below. As the heat-welding sheet S, laminated paper, vinyl film or the like is used.

[0012]

[Effect of device]

 In this invention, since the object to be packaged is covered with the heat-welding sheet and the ends thereof are welded, only one series of the heat-welding sheet is required, and the structure is simple, which is effective. The seat can also be used without waste.

[Brief description of drawings]

FIG. 1 is a schematic side view of an embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wrapping device 2 Feeding roller 3 Sheet roll 4 Winding roller 6 Stacking means 7 Sheet swinging means 8 Heater and cutter means 9 Drawer roller S Heat-welding sheet W W to be packaged

Claims (1)

[Scope of utility model registration request] 1. A packaging device for packaging an article to be packaged with a heat-welding sheet, a feeding roller for feeding the heat-welding sheet, and a roll for further feeding or pulling back the fed heat-welding sheet. Clamping roller, stacking means for stacking the articles to be packaged during slack formed by the heat-welding sheet fed by the winding roller, and the heat-sealing to the articles to be stacked on the stacking means. A packaging device comprising a sheet swinging means for stacking sheets, a heater and a cutter means for welding and cutting the heat-welded sheets stacked by the swinging means, and a pull-out roller for pulling out the heat-welded sheet.