JPS6217369Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to a packaging device that pulls out a film, wraps an object to be packaged with the film, and cuts the film.

(Prior Art) Conventionally, as shown in FIG.
is pulled out, the film 83 is used to wrap the packaged product T, and the packaged product T is moved to the thermal cutter 85 portion so that the drawn-out portion 83a of the film 83 straddles the film holder 84, and the thermal cutter 85
The cutter 85 is held in a state in which the front part of the article T is received by the pressure roller 86 located at the front part of the cutter 85.
A configuration is provided in which the pull-out portion 83a of the film 83 is cut at the same time.

(Problems to be Solved by the Invention) However, in this device, the wrapping portion 83b of the film 83 and the film pull-out portion 83a to be cut are in vertical contact with each other in the upper portion of the thermal cutter 85. , a heat cutter 85 is inserted into the film drawer section 83a from below.
When the film is melted (cut) by applying a
There was a fear that a hole would be formed in 3b due to melting, and that the winding portion 83b would also be fused. Therefore, in the past, the 11th cutting method was
As shown in the figure, it is common practice to draw out the film 83 for a long length so that the object to be packaged T is not located above the thermal cutter 85, and then cut the drawn-out portion 83a.

However, this still leaves the problem that the amount of film 83 is wasted.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a packaging device that can reliably prevent the formation of melt holes in the wrapping portion of a film for a packaged object or the winding portion from being fused and cut, and can eliminate waste of the film. It is in.

[Structure of the invention] (Means for solving the problem) The present invention is designed to transfer the packaged object wrapped with the film led out from the lead-out part to the thermal cutter part located in the front part of the film holder. The cutter is configured to cut the drawn-out portion of the film with the cutter while the cutter is moving and the bottom front part of the packaged object is received by a pressure roller located in the front part of the heat cutter. a regulating member that is located at a rear portion and receives the rear part of the bottom of the object to be packaged, and regulates the object to be packaged in an upwardly inclined shape with the pressure roller, thereby separating the bottom of the object to be packaged from the cutter; It is characterized by the fact that it has been provided.

(Function) When the film led out from the lead-out part is wound around an object to be packaged and the drawn-out part of the film is cut with a thermal cutter, the object to be packaged is received by the regulating member and the pressure roller, and is then Since the bottom of the packaged item is regulated in an upward slope and separated from the thermal cutter, the bottom part of the wrapping part of the packaged item in the film is separated from the thermal cutter, and thus The thermal heat of the heat cutter does not spread, and therefore only the drawn-out portion of the film is cut by the heat cutter.

(Example) The following Figures 1 to 7 are for the first embodiment of the present invention.
This will be explained with reference to the figures. First, in FIGS. 1 to 3, reference numeral 1 denotes a frame-shaped apparatus main body, and a pair of front and rear mounting rollers 2 and 3 are rotatably disposed at the rear thereof. A roll 5 of film 4 is placed on these placement rollers 2 and 3. Reference numeral 6 denotes a lid plate which also serves as a work plate and which is disposed on the upper surface of the approximately middle part of the main body 1 of the apparatus, and a base plate 7 for packaging work is disposed on the upper surface of this plate so as to be movable back and forth. A protrusion 8 for supporting fingers and guiding the film is provided at the edge. Reference numeral 9 denotes a base plate for welding work arranged at the front part of the device main body 1, and an adhesive hot plate 1 is mounted on the top surface of this base plate.
0 is provided, and a panel plate portion 11 is formed at the rear edge of the base plate 9. In FIGS. 2 and 3, 12 is a film holder made of a metal plate that is non-slip with respect to the film 4, and is held between the panel plate portion 11 of the base plate 9 and the protrusion 8. It is located and pivoted to the device main body 1 via a shaft 12a so as to be rotatable in the direction of arrow A and the direction opposite to arrow A. A front rising portion 13 and a rear rising portion 14 extend from the front and rear portions of the film holder 12, respectively.The front rising portion 13 and the rear rising portion 14 are provided with a flat front holding portion 15 and a rear rising portion 15, respectively. A holding part 16 is extended, and a guard part 17 is formed in the front part of the front holding part 15 to be spaced apart therefrom. still,
The tip of the rear holding part 16 is bent downward,
It is designed to prevent injury to hands and fingers from the edges. Furthermore, as shown in FIG.
A narrow notch 18 is formed throughout.
Further, a film guide 19 having a slippery property for the film 4 is attached to the rear surface of the rear rising portion 14 of the film holder 12, and a film guide 19 is provided between the film holder 12 and the main body 1 for holding the film. A spring 20 that constantly biases the body 12 to rotate in the direction of arrow A.
is installed. Reference numeral 21 denotes a pull-out roller, which is rotatably provided at a portion opposite to the film guide 19.
and the film guide 19 constitute a lead-out section 22 for leading out the film. Reference numeral 23 denotes a thermal cutter having a heater inside, which is fixedly attached to the main body 1 of the apparatus between the front holding part 15 and the guard part 17 of the film holding body 12 in a non-protruding state;
Accordingly, the thermal cutter 23 is designed to relatively protrude upward from the film holder 12 when the film holder 12 rotates in the direction opposite to the arrow A. Reference numerals 24 and 24 designate roller levers, whose intermediate portions are pivotally supported by the left and right side plates of the apparatus main body 1, and a pressure roller 25 is rotatably mounted at one end of these roller levers 24, 24. bridged,
Also, at the other end, there is a spring 26 which always urges the roller lever 24 and hence the pressure roller 25 to rotate in the direction of arrow B.
is installed. Reference numeral 27 denotes an arm serving as a regulating member, and a portion of this arm near one end is rotatably mounted on the main body 1 of the apparatus by a shaft 27a. The other end of the arm 27 is bent into an L-shape and directed upward, and a push-up roller 29 is rotatably provided at the upper end of the other end via a connector 28. Further, a spring 30 is tensioned between one end of the arm 27 and the main body 1 of the apparatus to constantly urge the arm 27 to rotate in the direction of arrow C. The push-up roller 29 is normally located in the notch 18 of the film holder 12 and below the front and rear holders 15 and 16, and is rotated in the opposite direction of arrow C. Film holder 12
It is designed to protrude upward from the front and rear holding parts 15 and 16. Reference numeral 31 designates an electromagnetic solenoid disposed below the arm 27 in the apparatus main body 1, and its plunger 32 is connected to one end of the arm 27 via the connector 3. This electromagnetic solenoid 31 is structured to lower the plunger 32 when energized. 34 is a detection switch consisting of a normally closed limit switch, which means that when the roller lever 24 is in the state (FIGS. 2 and 3), the actuator 34a closes the roller lever 2.
The detection switch 34 is arranged in the device main body 1 so as to be pressed at the other end of the electromagnetic solenoid 31, and the detection switch 34 is connected to open and close the energizing path of the electromagnetic solenoid 31. In the state shown in FIGS. 3 and 3, the electromagnetic solenoid 31 is in a power-off state. In addition, in FIG. 2, 35 is a power distribution box attached to the back side of the panel board part 11, and this panel board part 11
As shown in Fig. 1, the power switch 36,
A knob 37 for adjusting and setting the heat generation amount of the adhesive hot plate 10 is provided, while a heat cutter 23 is provided on the left side of the base plate 9.
A knob 38 is provided to adjust and set the amount of heat generated. Next, the operation of the above configuration will be explained. First, the state before use shown in FIG. 2 will be described. In this state, the film 4 passes through the lower surface of the loading roller 2 and is pulled out between the pull-out roller 21 and the film guide 19, that is, from the lead-out portion 22, and the pulled-out end portion of the film 4 is connected to the rear holding portion 16 and It is held in close contact with the front holding part 15 and held as a bridge.

() From this state, the article W to be packaged is placed in the tray T, and the tray T is placed on the base plate 7.
Then, grasp the pull-out portion of the film 4 and pull the film 4 upward and slightly toward the front as shown in FIG. 5a. At this time, the film 4 slides on the film guide 19, so the film holder 12 is not rotated at all.

() Then, the film 4 is guided toward the base plate 7 as shown in FIG.

() Next, the tray T in the above state is moved toward the thermal cutter 23 in front of the film holder 12 as shown in FIG. 5c. As a result, the film 4 comes into contact with the rear end 16a of the rear holding part 16 of the holder 12 and becomes sticky, which causes the film 4 to become sticky.
2 rotates in the opposite direction of arrow A, and accordingly, the thermal cutter 23 projects upward relative to the film holder 12. In this case, the pressure roller 25 is located above the thermal cutter 23.

() From this state, the bottom front part of the tray T is pressed against the pressure roller 25 as shown in FIG. 5d.
Then, the pressure roller 25 is slightly rotated in the direction opposite to the arrow B, which causes the actuator 34 of the detection switch 34 to return and turn on, energizing the electromagnetic solenoid 31 and lowering the plunger 32, thereby lowering the arm 27. is rotated in the opposite direction of arrow C, causing the push-up roller 29 to protrude upward from the film holder 12. As a result, the rear part of the bottom of the tray T is pushed up by the push-up roller 29, and its lower surface is regulated in an inclined manner with respect to the film holder 12. As a result, if the bottom of the tray T is separated from the thermal cutter 23, Close.

() Then, when the pressure roller 25 is further pressed by the tray T and rotated in the opposite direction of arrow B as shown in FIG. (cut) to be cut off. At this time, the bottom of the tray T in the film 4 is received by the push-down roller 29 and the pressure roller 25 of the arm 27, and is regulated in an inclined manner and is spaced apart from the thermal cutter 23. The bottom part of the winding part 4b is spaced apart from the heat cutter 23, so the thermal heat of the heat cutter 23 does not spread to the winding part 4b of the film 4, so that the winding part 4b is None of the traditional problems of melting or fusing occur. Therefore, there is no need to pull out the film 4 for a long time as in the conventional case, and the waste of the film 4 can be eliminated. Here, when the pull-out portion 4a of the film 4 is cut by fusing, a part (center portion) of the pull-out portion 4a is pushed up by the push-up roller 29, so that the blow-cutting action of the thermal cutter 23 is applied to the center portion. However, as shown in FIG. 6, the thermal cutter 23 cuts the film 4 from both ends to the center of the pull-out portion 4a, so that the center portion of the pull-out portion 4a is cut as shown by the dashed line. The film 4 is torn from the end, and the pull-out portion 4a of the film 4 is thus cut. After the cutting, the film holder 12 rotates back in the direction of arrow A, and the thermal cutter 23 descends relatively. Thereafter, the tray T is pulled forward and downward as shown by arrow D in FIG. After this, the roller lever 24 is rotated back by the spring 26, and based on this, the detection switch 34 is turned off and the electromagnetic solenoid 31 is de-energized, thereby causing the arm 27 and the pressure roller 29 to rotate in the direction of arrow C. and is returned to its original position as shown in FIGS. 2 and 3.

After that, both ears 4c, 4c of the film 4 shown in FIG. 7 are moved in the direction of the arrow E (toward the bottom of the tray T).
Then, the film 4 on the bottom of the tray T is welded using an adhesive hot plate 10.

In the above embodiment, the rotation of the roller lever 24 is detected electrically to rotate the arm 27 and hence the push-up roller 29, but the rotation of the roller lever 24 is detected by mechanical means such as a link. It may also be configured such that the signal is transmitted to the arm 27 via the arm 27 to rotate the arm 27.

Next, FIG. 8 shows a second embodiment of the present invention. In this embodiment, a detection switch 40 consisting of a normally open limit switch is used in place of the detection switch 34 that detects the rotation of the roller lever 24. It is provided to detect rotation of the body 12 in the direction opposite to the arrow A, and in response to the rotation of the film holder 12 in the direction opposite to the arrow A, the arm 27 and the push-up roller 29 are projected upward. Although the structure is different from the first embodiment, it produces the same effects as the second embodiment.

FIG. 9 shows a third embodiment of the present invention, in which the arm 2 is equipped with a push-up roller 29.
Arm 4 without push-up roller 29 instead of 7
Although this embodiment differs from the first embodiment in that 1 is provided, the same effects as in the first embodiment can be achieved.

Further, in each of the above embodiments, the film holder 12 is configured to rotate, but it may also be a fixed type.
What is necessary is to raise it in response to the rotation of the.

In addition, the present invention is not limited to the above embodiments, and can be implemented with various modifications without departing from the scope of the invention.

[Effects of the invention] As explained above, the present invention moves the packaged object wrapped with the film led out from the lead-out part to the thermal cutter part located in the front part of the film holder, and The drawer portion of the film is cut with the cutter while the front bottom portion of the packaged object is received by a pressure roller located in the front portion of the thermal cutter, wherein A regulating member is provided which receives the bottom rear part of the object to be packaged and regulates the object to be packaged in an upwardly inclined shape with the pressure roller, thereby separating the bottom part of the object to be packaged from the cutter. With this, when cutting the film, only the drawn-out part of the film can be cut by melting without causing the thermal heat of the heat cutter to spread to the wrapping part of the film to be packaged. It is possible to reliably prevent melting holes from being formed in the wrapping portion of the film for the packaged object and the wrapping portion being fused and cut, and therefore there is no need to draw out the film for an unnecessarily long length, and the amount of film used can be reduced. be effective.

[Brief explanation of the drawing]

1 to 7 show a first embodiment of the present invention, in which FIG. 1 is an overall perspective view, FIG. 2 is an enlarged vertical sectional side view, FIG. 3 is an enlarged longitudinal sectional side view of main parts, and FIG. 5 is a perspective view of the film holder; FIGS. 5a to 5e are enlarged longitudinal sectional side views of main parts for explaining the packaging procedure; FIG. 6 is a perspective view of the film drawer for explaining the film cutting action; FIG. 7 is a perspective view of the packaged object in the middle of packaging, and FIGS. 8 and 9 are third and third embodiments of the present invention.
It is a figure equivalent figure. FIGS. 10 and 11 are an overall longitudinal sectional side view and a longitudinal sectional side view of essential parts of a conventional example. In the figure, 1 is the apparatus main body, 4 is the film, 12 is the film holder, 22 is the lead-out part, 23 is the thermal cutter, 24 is the roller lever, 25 is the pressure roller, 2
7 is an arm (regulating member), 29 is a push-up roller,
31 is an electromagnetic solenoid, 34 is a detection switch, 4
0 is a detection switch, and 41 is an arm (regulating member).

Claims (1)

[Scope of utility model registration request] The object to be packaged, which is wrapped with the film guided out from the outlet section, is moved to the thermal cutter section located in the front part of the film holder, and the bottom front part of the object to be packaged is moved to the front part of the thermal cutter. The cutter cuts the drawn-out portion of the film while the film is being received by a pressure roller located at the back of the cutter, wherein the cutter is located at a rear portion of the cutter and receives the bottom rear portion of the packaged object and is held by the pressure roller. A packaging device characterized in that a regulating member is provided for regulating the article to be packaged in a rearwardly upwardly sloping shape and separating the bottom part of the article to be packaged from the cutter.