JP5834246B2 - SMC sheet cutting position display device - Google Patents

Description

  The present invention relates to a cutting position display device for an SMC sheet.

  SMC (sheet molding compound) containing a resin composition containing an additive such as a resin and a filler, a curing agent, a thickener, and glass fiber, and the two upper and lower resin compositions and glass fibers constituting the SMC. It is sandwiched between release films, conveyed in a sheet form, and impregnated with an impregnation device to impregnate the resin composition into glass fibers to produce an SMC sheet.

  After exiting the impregnation apparatus, the SMC sheet is wound into a cylindrical shape on a winding shaft and stored in a storage container, or is stored in a storage container in a zigzag manner.

  The stored SMC sheet is conveyed to a cutting device by a conveying device, cut into a predetermined shape (charge pattern) for press molding, then set in a lower die, and pressed by an upper die and a lower die. SMC molded products are obtained.

  Among the manufacturing processes of the above SMC molded products, SMC that can improve the production efficiency of SMC molded products by efficiently transporting and cutting SMC sheets stored in storage containers to a cutting device so far A sheet conveying and cutting apparatus has been proposed (see, for example, Patent Document 1).

  As shown in FIG. 4, this conveyance cutting apparatus conveys the SMC sheet 3 stored in the storage container 4 to the cutting apparatus 5 while pressing it with the feed roll 1, and has a predetermined length in the direction perpendicular to the conveyance direction. It has a function of cutting.

  The SMC sheet 3 cut in this way is cut on the cutting table 6 by a worker using a cutting jig such as a cutter according to the shape (charge pattern) of the SMC molded product to be formed. Are stacked and pressed with a mold to obtain an SMC molded product.

JP 11-309471 A

  In the above SMC sheet manufacturing method, since the ratio of the glass fiber to the resin is slightly different in the ears located at both ends of the SMC sheet 3 due to non-uniform viscosity of the compound, the SMC sheet 3 is different for each production lot. There may be variations in the width of the.

  When cutting the SMC sheet 3 having such a variation in width, it is necessary to change the cutting position of the SMC sheet 3 according to the width of the SMC sheet 3, so the operator sets the cutting position on the cutting table 6. It corresponds to the SMC sheet 3 displayed and different in width.

  However, it is complicated to handle SMC sheets 3 with different widths, and the cutting positions are wrong and the widths of the ears are cut unevenly. When the SMC molded product is press-molded and used to warp, the obtained SMC molded product may be warped and defects such as glass eyes and pinholes may occur.

  In order to prevent the occurrence of such a defect, the width of both ears located at the edges of both ends is cut left and right, and the SMC molded product is used by using a central portion where the ratio of glass fiber and resin is stable. Need to be molded.

  The present invention has been made in view of the circumstances as described above, and can display an SMC sheet cutting position that can easily and accurately cut an SMC sheet and reduce defects in an SMC molded product. It is an issue to provide.

  The present invention is characterized by the following in order to solve the above problems.

  In other words, the SMC sheet cutting position display device of the present invention is a cutting position display device for displaying the cutting position of the SMC sheet, and includes a width detecting means for detecting both side width ends of the SMC sheet, and both side widths of the SMC sheet. Cutting position display means for displaying a cutting position at a position inside a predetermined width from the end portion, and for cutting a portion excluding the predetermined width portion from the width end portion of the SMC sheet into a predetermined cutting width and the number of cut sheets A cutting position display means for displaying the cutting position is provided.

  In this SMC sheet cutting position display device, the cutting position display means for cutting the SMC sheet is preferably a laser marker.

  In the SMC sheet cutting position display device, the cutting position display device is installed in a direction perpendicular to the longitudinal direction in addition to the longitudinal direction, thereby displaying the cutting position in the direction perpendicular to the longitudinal direction. Is preferred.

  According to the SMC sheet cutting position display device of the present invention, the cutting operation of the SMC sheet can be performed easily and accurately, and defects of the SMC molded product can be reduced.

It is a schematic sectional drawing which shows the conveyance cutting apparatus of the SMC sheet using the cutting position display apparatus of the SMC sheet of this invention. It is a schematic plan view which shows the SMC sheet by which the cutting position was displayed in the longitudinal direction with the SMC sheet cutting position display apparatus. It is a schematic plan view which shows the SMC sheet by which the cutting position of the orthogonal | vertical direction with respect to the longitudinal direction and the longitudinal direction was displayed by the cutting position display apparatus of the SMC sheet. It is a schematic sectional drawing which shows the conventional SMC sheet conveyance cutting device.

  Hereinafter, embodiments of the SMC sheet cutting position display device of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic cross-sectional view showing an SMC sheet conveying and cutting apparatus using the SMC sheet cutting position display device of the present invention.

  First, the SMC sheet 3 is pulled out from the storage container 4 accommodated in a zigzag shape, conveyed to the cutting device 5 while being pressed by the feed roll 1, and cut into a predetermined length.

  The SMC sheet 3 cut to a predetermined length by the cutting device 5 is placed on the cutting table 6, and the cutting position is displayed on the surface of the SMC sheet 3 by the cutting position display device 20.

  The cutting position display device 20 includes at least a width detection unit 201 and a cutting position display unit 202.

  As shown in FIG. 2, the width detecting means 201 is provided on each of the left and right sides to detect the width end of the SMC sheet 3 on the cutting table 6, and the entire left and right end edges of the SMC sheet 3 are provided. Is to be detected.

  The width detecting means 201 can be used without particular limitation as long as the width end of the SMC sheet 3 on the cutting table 6 can be detected. Examples of these include the entire one end of the SMC sheet 3. The detection camera etc. which image | photograph this image, extract an end surface by image processing, and detect a width | variety edge part from the average value of the end surface can be mentioned.

  The cutting position display means 202 is arranged in the inner region of the width detection means 201 when viewed from above the cutting position display device 20, and the cutting position display means 202a for displaying the cutting position 203a at the end and the cutting at the center. It is constituted by cutting position display means 202b for displaying the position 203b.

  The cutting position display means 202 has a function of irradiating visible light, and displays the cutting positions 203a and 203b by irradiating the surface of the SMC sheet 3 with linear visible light.

  The cutting position display means 202 having such a function can be used without particular limitation as long as the cutting positions 203a and 203b can be displayed on the SMC sheet 3, and examples thereof include a laser marker, A straight line image projector can be mentioned.

  Among these, a laser marker can be particularly preferably used from the viewpoints of visibility of visible light, accuracy of straight line display, and the like.

  The number and arrangement position of the cutting position display means 202b can be appropriately set according to the size of the SMC sheet 3 and the shape (charge pattern) of the SMC molded product, and are set in advance according to the cutting width and the number of cut sheets. .

  Next, the operation of the SMC sheet cutting position display device of the present invention will be described in detail.

  First, the SMC sheet 3 cut by the cutting device 5 is placed on the cutting table 6, and the positions of the left and right width end portions are detected by the width detecting means 201.

  Then, the detected position data of the width end is processed by a data processing device (not shown), and the cutting position is displayed so that the cutting position is displayed at equal positions from the left and right width ends from the position data of the width end. The position of the display means 202a is adjusted.

  In this state, visible light is irradiated on the SMC sheet 3 from the cutting position display means 202a, the cutting positions 203a at both ends are displayed, and a predetermined cutting is performed at a portion excluding both ears at the width end. According to the width and the number of sheets to be cut, the cutting position display means 202b displays the cutting position 203b.

  Thus, according to the cutting positions 203a and 203b displayed on the SMC sheet 3, the operator cuts the SMC sheet 3 by using a cutting jig such as a cutter, so that the shape (charge pattern) of the SMC molded product is obtained. Can be cut easily and accurately.

  Moreover, since it can cut | disconnect from the both ends of the SMC sheet 3 according to the display of the equal cutting position 203a, the defect of the SMC molded product resulting from misuse of the SMC sheet with the nonuniform width | variety of the right and left ear | edge part Can be reduced.

  Further, in the SMC sheet cutting position display device of the present invention, as shown in FIG. 3, the cutting position display device 21 is perpendicular to the longitudinal direction of the SMC sheet 3, that is, perpendicular to the cutting position display device 20. It is also possible to display the cutting position 213 in the direction perpendicular to the longitudinal direction by the cutting position display means 212 installed in the direction.

  By displaying the cutting position 213, the operator can confirm the exact length of the SMC sheet 3 in the longitudinal direction, and easily and accurately cuts in the direction perpendicular to the longitudinal direction of the SMC sheet 3. be able to.

  In this case, the width detection unit 211 of the cutting position display device 21 detects both ends in the longitudinal direction of the SMC sheet 3 cut by the cutting device 5 and divides the both ends by a predetermined cutting reference. The cutting position display means 212 displays the cutting position 213 in the vertical direction at the position to be operated.

  As the width detection means 211 and the cutting position display means 212 constituting the cutting position display device 21, the same ones as the width detection means 201 and the cutting position display means 202 constituting the cutting position display device 20 can be used.

  In addition, about the display of this cutting position 213, since the edge part of the longitudinal direction of the SMC sheet 3 is a surface cut | disconnected by the cutting device 5, this surface is abutted and hold | maintained at the positioning device which is not shown in figure, and this positioning device By displaying the cutting position 213 in the vertical direction by the cutting position display means 212 provided at a predetermined position from the above, the width detection means 211 may be displayed.

  While the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention.

  For example, the installation position of the cutting position display device 20 shown in FIG. 1 and FIG. 2 is installed so as to be displayed toward the cutting device 5, but for example, it is displayed toward the SMC sheet 3 from above. It can also be installed so as to display from the direction of the cutting device 5.

DESCRIPTION OF SYMBOLS 20 Cutting position display apparatus 201 Width detection means 202 Cutting position display means 202a Cutting position display means 202b Cutting position display means 203a Cutting position of end part 203b Cutting position of center part 21 Cutting position display apparatus 211 Width detection means 212 Cutting position display means 213 Cutting position 3 SMC sheet

Claims (3)

A cutting position display device for displaying a cutting position of an SMC sheet,
A width detecting means for detecting the both side width end of the SMC sheet,
Corresponding to the predetermined width from the both side width end portion determined based on the position data of the both side width end portion detected by the width detection means, the position inside the predetermined width from the both side width end portion, First cutting position display means for displaying a cutting position by irradiating visible light;
A second cutting position display means for displaying a cutting position for cutting a portion of the SMC sheet excluding the predetermined width portion from the both side width end portions into a predetermined cutting width and the number of cut sheets; A SMC sheet cutting position display device. The SMC sheet cutting position display device according to claim 1, wherein the first and second cutting position display means are laser markers. The SMC sheet cutting position display device according to claim 1 or 2 is installed in a longitudinal direction of the SMC sheet,
In addition, a separate SMC sheet cutting position display device installed in a direction perpendicular to the longitudinal direction,
Width detecting means for detecting both ends in the longitudinal direction of the SMC sheet cut by the cutting device;
Corresponding to a predetermined width from the both end portions determined based on the position data of the both end portions detected by the width detecting means, the visible light is irradiated to a position inside the predetermined width from the both end portions. A third cutting position display means for displaying the cutting position by:
The additional SMC provided with a fourth cutting position display means for displaying a cutting position for cutting a portion excluding the predetermined width portion from both ends of the SMC sheet into a predetermined cutting width and the number of cut sheets. An SMC sheet cutting position display device comprising a sheet cutting position display device.

Images