JPH0571104U - Bag making guide device - Google Patents

Abstract

(57) [Summary] [Purpose] There is no risk of hindering the guidance of the sheet-shaped packaging material, and even if the height is adjusted according to the size of the article to be packaged, (EN) Provided is a bag making guide device for smoothly changing a sheet-like packaging material into a predetermined tubular shape with a small change amount and in a space-saving manner. A pair of side frames 64 that can move horizontally with respect to a base 90 is provided, and a pair of shaping blades 70 that can move up and down are provided. An arm plate 77 is bridged so as to connect to the side frame 64, and one end of the arm plate 77 is rotatably fixed to the side frame 64 via a pin 79, and the middle of the arm plate 77 is in the middle. To the other end, a long hole 81 is provided.
Is slidably fixed to the shaping blade 70 via a guide pin 78.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bag making guide device for making a sheet-shaped packaging material into a predetermined tubular shape in a bag making device of a packaging device.

[0002]

[Prior Art]

 In a conventional bag-making machine for a packaging device, a bag-making guide device for making a sheet-shaped packaging material into a predetermined tubular shape is as shown in FIG. 7 as known from, for example, Japanese Utility Model Publication No. 57-7601. By rotating the pinion 35, the linear motion is transmitted to the sliding portion 41 via the rack 43, and the shaping blade 42 is moved in the direction of b1-b2 while keeping the elevation angle θ constant. It is configured to adjust the height of.

[0003]

[Problems to be solved by the device]

 However, in the conventional bag-making guide device described above, when the height H of the article A to be packaged exceeds a certain height, the shaping blade 42 projects in the b2 direction, so it is necessary to secure a space corresponding to this. Moreover, since a discontinuous state occurs between the shaping edge 39a and the leading edge 42a, which may hinder the bag-making of the sheet-shaped packaging material C, an extendable guide device must be attached. As shown in FIG. 8, a constant length that guides the sheet-shaped packaging material C such that the entrance height of the transport path is changed to h1, h2, and h3 corresponding to the height H of the article A to be packaged. If an arm plate having a radius of gyration of r is used, the elevation angle of the shaping blade 42 greatly changes to θ1, θ2, and θ3, so that there is a problem that wrinkles are likely to occur in the sheet-shaped packaging material C. The present invention has no fear of hindering the guidance of the sheet-shaped packaging material, and even if the height is adjusted according to the size of the article to be packaged, the amount of change in the elevation angle of the shaping blade is small. It is an object of the present invention to provide a bag-making guide device for smoothly forming a sheet-shaped packaging material into a predetermined tubular shape in a small space.

[0004]

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention comprises a pair of side frames that can move horizontally with respect to a base, and a pair of shapings that can move vertically. The arm plate has a wing, and the arm plate is bridged so as to connect the bent edge of the shaping wing and the side frame, and one end of the arm plate is rotatably fixed to the side frame through a pin. In addition, a long hole is provided from the middle to the other end of the arm plate, and the long hole is slidably fixed to the shaping blade via a guide pin.

[0005]

[Action]

 Since the present invention has the above characteristics, as shown in FIG. 4, even if the height of the article A to be packaged increases from H1 to H2, the turning radius changes from R1 to R2. The elevation angle of the shaping blade only changes from θ1 to θ2, the amount of elevation angle change θ21 is small, and space is saved.

[0006]

【Example】

 An embodiment of the present invention will be described. 1, 5, and 6 show a bag making machine of a packaging apparatus, which has a base 90 and a slide frame 62 which is moved by a slide rail 54 and a slide piece 56 at the center. The base 90 is provided with a pair of left and right bottom plates 66 for mounting the article A to be packaged via a post 91. The palm-shaped ears of the sheet-shaped packaging material F are formed between the edge portions 83 of the bottom plate 66.

A side frame 64 is provided with a side frame mount 65 through a slide shaft 53 fixed to a slide frame 62 and a slide piece 56 horizontally moving on a slide rail 54 attached to a base 90 in a divergent manner. It is fixed by. In order to define the side frame 64 to have a predetermined width dimension according to the width of the article A to be packaged having a different size, the base 90 is provided with the threaded rod mounting body 67, and the central threaded rod 58 is provided with the threaded rod mounting body 67. The frame 68 is inserted. This top 68 is provided with a screw hole adapted to the screw rod 58 and is installed in a groove provided in the slide frame 62. By rotating the screw rod 58, the slide frame 62 is attached to this guide bracket. It moves back and forth with a pair of right and left shaping wings 70 and arm plates 77 fixed via 75. At this time, the side frame 64 is moved left and right by being guided by a slide rail attached to the end side.

An arm plate 77 is rotatably mounted on the side frame 64 via a pin 79. A long hole 81 is formed in the arm plate 77 in the longitudinal direction, and is slidably held by a guide pin 78 attached to the shaping blade 70. The shaping blade 70 is rotatably and slidably attached to a support shaft 71 via a bush 72. The support shaft is fixed to a holder 76, and a height adjusting screw rod 73 is provided in a direction perpendicular to the holder shaft. ing. The guide bracket 75 attached to the slide frame 62 is rotatably equipped with a handle 74, and a screw hole matching the height adjusting screw rod 73 is screwed in the center of the handle 74 to adjust the height. The screw rod 73 is inserted.

The shaping wing 70 adjusts the elevation angle θ by the height adjusting screw rod 73 and the handle 74 in order to regulate the height dimension to the height H of the articles A to be packaged having different sizes. Simultaneously with the change, the distance R from the pin 79 to the bent edge 82 of the shaping blade also changes while moving. For example, when the height H of the article A to be packaged is low, as shown in FIG. 2, by moving the shaping blade 70 in the direction of the arrow f, the arm plate 77 is formed into a long hole along the guide pin 78. 81 moves, and the distance R from the pin 79 to the tip 82 of the bent edge of the shaping blade decreases, but the angle of elevation θ also decreases. When the height H of the article A to be packaged is high, as shown in FIG. 3, by moving the shaping wing 70 in the direction of the arrow e, the arm plate 77 causes the long hole 81 along the guide pin 78. Moves, and the distance R from the pin 79 to the shaping blade bent edge tip 82 becomes long, the elevation angle θ also becomes large, and the sheet-like packaging material F plays a role of contacting. The arm plate 77 that guides the sheet-shaped packaging material F has sufficient rigidity regardless of the vertical direction of the shaping wing 70, and therefore the amount of change in the elevation angle θ is small without causing deformation, and therefore, when making a bag. Wrinkles do not occur in the sheet-shaped packaging material F. Further, since the arm plate 77 is bridged between the bent edge 80 of the shaping blade and the outer side of the side frame 64 and does not project downward from the extension line of the bent edge 80 of the shaping blade, the sheet-shaped packaging material F It does not adversely affect the flow.

[0010]

[Effect of the device]

 As described above, the bag making guide device according to the present invention does not have a problem in guiding the sheet-shaped packaging material and can be adjusted to a predetermined size according to the size of the article to be packaged in a space-saving manner. Therefore, the sheet-shaped packaging material can be smoothly formed into a predetermined tubular shape regardless of the size of the bag.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a side view of an essential part of an embodiment of the present invention.

FIG. 3 is a side view of a main part of the embodiment of the present invention.

FIG. 4 is an explanatory view showing the height of the entrance of the transport path according to the height of the article to be packaged in one embodiment of the present invention.

FIG. 5 is a front view of an embodiment of the present invention.

FIG. 6 is a partial cross-sectional bottom view of an embodiment of the present invention.

FIG. 7 is a partial cross-sectional side view of a conventional bag making guide device.

FIG. 8 is an explanatory view showing a transport path entrance height according to a height of an article to be packaged in a conventional bag making guide device.

[Explanation of symbols]

35 is a pinion, 39a is a shaping edge, 41 is a slide part,
42 is a shaping blade, 42a is a tip edge, 43 is a rack, 53 is a slide shaft, 54 is a slide rail, 56 is a slide piece, 58 is a screw rod, 62 is a slide frame, 64 is a side frame, and 65 is a side frame mount. , 66 is a bottom plate, 67 is a screw rod mounting body, 68 is a top, 70 is a shaping blade, 71 is a support shaft, 72 is a bush, 73 is a height adjusting screw rod, 74 is a handle, 75 is a guide bracket, and 76 is a holder. , 7
7 is an arm plate, 78 is a guide pin, 79 is a pin, 80 is a bent edge of a shaping blade, 81 is a long hole, 82 is a tip of a shaping blade, 83
Is an edge portion, 90 is a base, 91 is a post, A is an article to be packaged, C is a sheet-like packaging material, and F is a sheet-like packaging material.

Claims (1)

[Scope of utility model registration request] 1. A pair of side frames that can move horizontally with respect to a base, and a pair of shaping blades that can move up and down, and a bent edge of the shaping blade and the side frame. The arm plate is bridged so as to connect with, and one end of the arm plate is rotatably fixed to the side frame through a pin, and a long hole is provided from the middle to the other end of the arm plate. The bag making guide device is characterized in that the elongated hole is slidably fixed to the shaping blade via a guide pin.