JPH0135837Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a trimming device suitable for trimming a container molded from a synthetic resin and a plurality of packages packaged using this container.

<Prior Art> Various conventional trimming devices are known, such as one shown in Japanese Utility Model Application Publication No. 58-171810. This trimming device (punching device) consists of an upper mold having a recess that can accommodate a plurality of items to be packaged that are vacuum-adhesively sealed together, and a female blade provided with a countersunk edge around the recess; A lower mold having a block-shaped male blade provided corresponding to the cutting edge of the mold is vertically opposed to each other and is movable forward and backward via a cylinder and a spring driving means. When the upper end of the male blade is inserted into the blade edge of the female blade with the object to be packaged in between, the corner part between the lower surface and the blade edge and the corner area of the upper surface periphery of the male blade are used as cutting edges. The periphery of an object can be cut at multiple points to take out multiple pieces at the same time.

<Problems with the prior art> However, in such a conventional trimming device, the cutting edge is the corner part between the lower surface of the female blade and the blade edge, and the corner part of the upper surface periphery of the male blade. When the upper end of the male blade is inserted into the ridge of the female blade with the packaged item tightly sealed under continuous vacuum sandwiched between them, the periphery of the packaged item is cut at multiple points so as to take out multiple pieces at the same time. For this reason, it is difficult to apply force uniformly around many non-packaged items,
Correspondingly, the driving means may become stale and the trimming accuracy may deteriorate over a long period of use. Furthermore, when the object is a synthetic resin film sheet, etc., if it is soft, it is surprisingly difficult to cut, and if the pressing force is not evenly applied, it tends to break and leave residue.

This idea was created by focusing on such conventional technology, and uses a diaphragm that can expand by applying compressed air to press a large number of blades, applying uniform pressing force to a large number of objects to be trimmed. It is an object of the present invention to provide a trimming device that can perform reliable cutting in this manner.

<Means for solving the problem> In order to achieve the above purpose, the trimming device according to this invention has an upper base plate with a receiving plate on the lower side and a movable body on the upper side of the left and right base frames. A lower base plate with a lower base plate and a lower base plate equipped with the trimmer are installed at a distance from each other on the upper and lower sides, and between these upper and lower base plates, a tray that also serves as a blade holder loaded with a plurality of objects to be trimmed is placed in a horizontal direction via a pair of left and right rails. When this tray is located between the upper and lower base plates, the movable body of the lower base plate is raised and the blade built in the tray is pressed against the receiving plate of the upper base plate and positioned between the blade and the receiving plate. This is a trimming device for cutting a part of an object to be trimmed, and the movable body is raised by a diaphragm provided on a lower base plate that can be expanded by applying compressed air, and the upper surface of the blade is attached to a receiving plate. On the other hand, when not pressed, the blade is hidden by an elastic body, and is built into the tray so as to surround the loading portion of a plurality of trimming objects.

<Operation> A plurality of objects to be trimmed are loaded into a plurality of loading portions of a tray that also serves as a blade holder, and the tray is moved horizontally on a pair of left and right rails and positioned between the upper and lower base plates. Then, the diaphragm of the lower base plate is inflated by applying compressed air to raise the movable body, and the blades built into the tray are exposed from inside the elastic body while surrounding the loading parts of the objects to be trimmed. Press it against the receiving plate to cut the part to be trimmed around the loading part of the trimming object located between the blade and the receiving plate. The biku blades are built into the tray and surround the loading parts of the plurality of trimming objects, and are raised by applying air pressure from the diaphragm via the movable body, so that the trimming target parts of the plurality of trimming objects can be trimmed. Each can be pressed against the receiving plate of the upper base plate with a uniform force, and cutting can be performed more reliably. Furthermore, since the vibrator blade is hidden by the elastic body when not pressed, protection of the blade edge and safety when loading the object to be trimmed can be achieved. Furthermore, since a diaphragm is used as the driving means instead of a cylinder or the like, the apparatus can be simplified accordingly.

<Example> The details of this invention will be explained below with reference to the drawings. 1 to 7 are diagrams showing an embodiment of this invention. 1 is a trimming device, which has a box shape as a whole (see Figure 3), and has a trimming device on the left and right sides of the top (see Figure 2).
The trimming device main body 4 is divided into a set zone 2 and a trimming zone 3, and is provided with a pair of left and right base frames 5, 6.
An upper base plate 7 and a lower base plate 8 are installed on the upper base plate 6, and a tray 9 which also serves as a blade holder is disposed between the upper and lower base plates 7 and 8 so that it can be taken in and out.

A pair of left and right base frames 5 and 6 each have an inverted U-shaped cross section and are provided on the left and right sides of the trimming device main body 4, and a pair of insertion holes 13 are provided at the front and rear of the upper and lower flanges 11 and 12 (left and right in FIG. 2). , 14, respectively (four in total) are inserted into the vertically protruding support shafts 15, and the screw portions 16 at the lower ends of the support shafts 15 are attached to the lower flange portion 12 with nuts 57.
It is screwed together and fixed. A pair of left and right rails 19 are attached to the upper flange portion 11 in the horizontal direction with screws 18 via a mounting plate 17 to set the set zone 2.
It extends from the mounting surface 20 side to the trimming zone 3. That is, the tray 9 which also serves as a blade holder is placed on a rail 19 so that it can be moved in and out horizontally from the setting zone 2 to the trimming zone 3. In the trimming zone 3, the tray 9 which also serves as a blade holder can be moved up and down. It is designed so that it can be guided when moving in the direction (direction A in FIG. 1).

The lower base plate 8 is connected to the base frames 5 and 6.
A thick plate 2 is supported at both ends by the lower base plate 8 and has a compressed air passage 22 connected to a compressor (not shown) provided in the trimming device main body 2 on the upper surface 21 of the lower base plate 8.
3 is fixed with screws 24. And this plank 2
On top of 3 is a diaphragm 2 that can be expanded by applying compressed air.
Hard rubber body 26 and plate body 2 are inserted from above with 5 interposed therebetween.
A movable body 28 consisting of two layers, 7 and 7, is arranged to be vertically movable. Specifically, the outer peripheral surface 2 of the movable body 28
A tightening guide member 31 having a guide surface portion 30 for guiding the movable body 28 is used to press the bottom surface portion 32 against the upper surface of the diaphragm 25 while surrounding the outer circumferential surface 29 of the movable body 28 with the guide surface portion 30 .
It is tightly fixed. That is, the diaphragm 25 can be expanded by applying compressed air from the compressed air passage 22,
The movable body 28 is designed to be able to rise. In addition, 3
A bolt 4 connects and fixes the hard rubber body 26 and plate body 27 of the movable body 28.

The tray 9, which also serves as a blade holder, has a plane size that corresponds to the movable body 28 as a whole, and has a loading section 36 that matches the shape and size of the object 35 to be trimmed.
(See Figure 2). Surrounding each of the loading portions 36 are blades 37 serving as "blade bodies" fixedly supported on a tray 9 which also serves as a blade holder, with the blade edges 38 vertically protruding. The cutting edge 38 of this blade 37 is covered with a sponge 39 as a "stretchable elastic body" to the extent that it is not exposed slightly when it is not pressed against a receiving plate (described later). 35 is designed to ensure safety when loading. The blade 37 is attached in a circular, oval, square, or other annular shape depending on the shape and size of the loading section 36.

In the illustrated example, the cutting edge 38 is provided with four notches each having a width of several millimeters.
Uncut portions 56 are left at equal intervals. Due to the presence of these non-cutting parts 56, the trimming target 3 after the trimming process (cutting)
5 are made easy to take out together with 12 pieces from a tray 9 which also serves as a blade holder (see Fig. 6).

The upper base plate 7 has a mounting hole 40 provided at a position corresponding to the support shaft 15 so that the spring 4
1 is inserted into the support shaft 15, and is attached to the threaded end portion 42 of the support shaft 15 with two nuts 43. The height from the base frames 5 and 6 can be adjusted depending on the elastic modulus and height of the spring 41. That is, the upper base plate 7 is designed to minimize the gap between the tray 9 and the tray 9, taking into account the height when the trimming object 35 is placed on the loading section 36 of the tray 9 which also serves as a blade holder, and to attach the support shaft in advance. The height is adjusted by tightening the 15 nuts 43. Two pairs of reinforcing ribs 44 having a flat rectangular shape are provided in parallel on the upper surface 10 (see FIG. 2), and on the lower surface 45, the trimming target 3 is provided.
A receiving plate 46 whose shape and size does not get in the way when the tray 9, which also serves as a blade holder loaded with blades 5, is taken in and out, and whose position is variable, is provided. This receiving plate 4
6 has a two-layer structure consisting of a hard rubber body 47 and a thin plate 48. Then, on the set zone 2 side, the L-shaped upright surface portion 49 of the receiving plate 46 has a pair of long holes 50 formed in the left and right direction (see FIG. 3).
The end surface 52 of the horizontal portion 51 of the receiving plate 46 is slidably supported in a receiving groove 53 provided in the upper base plate 7. That is, the receiving plate 4
The position of the blade 6 can be changed from time to time to prevent the deterioration of the receiving function due to wear of the blade 37. Note that 54 is a switch board of the trimming device 1, and 58 is a cover that covers the upper part of the trimming zone 3.

Next, the action will be explained.

First, the tray 9 is pulled out and positioned in the setting zone 2 via the rail 19, 12 trimming objects 35 are loaded into the loading section 36 of the tray 9, and the trimming objects 35 are moved from the setting zone 2 to the trimming zone 3, and both the upper and lower base plates 7 are moved. , 8.
At this time, the receiving plate 46 provided on the upper base plate 7 is continuously arranged flat from the side facing the setting zone 2 to the trimming zone 3 side, from the L-shaped rising surface part 49 to the horizontal part 51. This makes it possible to prevent the tray 9 from getting caught on the receiving plate 46 when the tray 9 is taken in and taken out. Then, the switch board 54 is operated to operate a compressor (not shown) to apply compressed air from the compressed air passage 22 of the thick plate 23 to the diaphragm 25, causing the diaphragm 25 to expand from the state shown in FIG. 7A to the state shown in FIG. 7B. A uniform pressing force is applied to the entire lower surface of the movable body 28 to cause it to rise. Next, the movable body 28
If a uniform pressing force is applied to the entire lower surface of the tray 9 and the tray 9 is pushed up, the sponge 39 will shrink and the cutting edge 38 will be exposed from the sponge 39, and the trimming target portion 55 of the trimming target 35 on the upper surface will be moved to the receiving part of the upper base plate 7. It is pressed against the plate 46 and cut. At this time, the 12 biku blades 37 are the diaphragm 25
Since each part receives a uniform pressing force from each part, the twelve trimming target parts 55 can be reliably cut with a uniform force. Then, the switch board 54 is operated to return the diaphragm 25 to the state shown in FIG. 7A, and the tray 9 is pulled out from the trimming zone 3 to the setting zone 4. As shown in FIG. 6, the trimming object 35 on the tray 9 that has been pulled out has a position corresponding to the notch of the blade 37 in the non-cutting part 5.
6, the 12 trimming objects 35 can be taken out from the tray 9 at the same time, and furthermore, after being taken out from the tray 9, this uncut portion 56 can be easily cut by hand to take out one object by touching it. I can do it.

<Effects> Since the trimming device according to this invention has the content as described above, when cutting the objects to be trimmed, the trimming device surrounds the loading section of a plurality of objects to be trimmed and is built into a tray that also serves as a blade holder. The biku blade, which serves as the blade body, is raised by applying air pressure from the diaphragm via the movable body, so that the parts to be trimmed of the plurality of trimming objects are each pressed against the receiving plate of the upper base plate with uniform force. This results in the effect that cutting can be performed more reliably. Furthermore, since the cutting edge of the biku blade is hidden by the elastic body when not pressed, there is an advantage that the cutting edge can be protected and safety can be achieved when loading the object to be trimmed. Furthermore, since a diaphragm is used as the driving means instead of a cylinder or the like, there is an effect that the device can be simplified accordingly.

[Brief explanation of the drawing]

Fig. 1 is an enlarged cross-sectional view of the main parts of the trimming device according to this invention, Fig. 2 is a plan view of the trimming device, Fig. 3 is a front view seen from the direction of the arrow in Fig. 2, and Fig. 4 is , a side view seen from the direction of the arrow in FIG. 2, FIG. 5 is a schematic cross-sectional view taken along the line indicated by the arrow in FIG. 3, and FIG. The explanatory diagram and FIGS. 7A and 7B are side views showing the movable states of the main parts of the trimming device. 1... Trimming device, 5, 6... Base frame, 7... Upper base plate, 8... Lower base plate, 9... Tray that also serves as a blade holder, 1
9...Rail, 21...Top surface of movable body, 25...
Diaphragm, 28...Movable body, 35...Trimming object, 36...Loading section, 37...Bikku blade,
45... lower surface of the receiving plate, 46... receiving plate, 55...
...Part to be trimmed.

Claims (1)

[Scope of Claim for Utility Model Registration] An upper base plate with a receiving plate on the lower side and a lower base plate with a movable body on the upper side are installed on the left and right base frames, spaced apart from each other vertically, and these A tray that doubles as a blade holder loaded with multiple items to be trimmed is placed between the upper and lower base plates and can be moved in and out horizontally via a pair of left and right rails, and when this tray is located between the upper and lower base plates, A trimming device that raises a movable body of a base plate and presses a blade built in a tray against a receiving plate of an upper base plate to cut a trimming target part of a trimming object located between the blade and the receiving plate, the movable body is raised by a diaphragm installed on the lower base plate that can be expanded by applying compressed air. A trimming device characterized in that the trimming device is built into a tray that surrounds a loading portion of an object to be trimmed.