JPH04122004U - Scrap treatment structure in a mold made of wood-based pine base material - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the operating rate by easily discharging cut scraps in the molding of wood mat base materials. [Structure] In order to form a folded portion Wb' on the edge of the wood-based mat base material W by the upper mold 1 and the lower mold 2, a nesting member that is linked to the vertical movement of the upper mold 1 is provided on the side of the upper mold. 3 is provided on the upper surface of the lower mold, and the upper mold 1 moves forward and backward toward the nesting member 3 in conjunction with the vertical movement of the upper mold 1 via an upper mold cam driver 4 provided on the upper mold 1. A wooden material comprising a lower mold shifting cam 5 which is capable of molding the folded part Wb' in cooperation with the nesting member 3 and has a blade part 5c capable of cutting the scrap part 9 at the end of the folded part Wb'. In the mat-based mold, a scrap catch claw 7 is provided on the front surface 5d of the lower mold shifting cam 5 to catch and hold the scrap portion 9 when the lower mold shifting cam 5 moves forward. When the mold is opened, the lower mold shifting cam 5 moves backward to move the scrap portion 9 to the upper mold 1.
A scrap disposal structure in a mold of a wood-based mat base material that is removed from the side and remains on the lower mold 2 side.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention is suitable for use in molding molds for wood mat base materials such as door trim base materials. Regarding the wrap processing structure.

0002

[Conventional technology]

Conventionally, for example, in the door trim base material W of a vehicle door, as shown in FIG. A mounting base part Wb is formed by folding the end edge into a substantially U-shaped cross section. The mounting base part Wb is a wood-based matte base material with a so-called undercut part. A mold for press molding has a configuration as shown in FIG. 3 (or FIG. 4), for example. There was something. In addition, only the molded part of this mounting base part Wb is shown in the figure.

0003 This mold consists of an upper mold 1 and a lower mold 2, and the opposing surfaces of both molds 1 and 2 are provided with the above-mentioned trim. Molding surfaces 1a and 2a are respectively formed so that the base material W can be molded. Furthermore, illustrated Although this is not the case, both upper and lower molds 1 and 2 have a plurality of gases penetrating them in the vertical direction. A punching hole is formed, and a heating plate is provided to heat both molds 1 and 2 to a predetermined temperature. It is attached.

0004 On the other hand, the molding material W' of the trim base material W is composed of defibrated wood fibers and, for example, wood fibers. Wood-based laminated fibers mixed with a binder such as phenolic thermosetting resin are used. After this molding material W' is laminated to a predetermined thickness on the molding surface 2a of the lower mold 2, the mold is clamped. At the same time, both the upper and lower molds 1 and 2 are heated to generate heat. A trim base material W having a predetermined shape is obtained by curing.

[0005] A mounting base portion Wb having a substantially U-shaped cross section is attached to the trim base material W formed in this manner. The configuration of a mold for simultaneous molding will be described with reference to FIG. 3 or 4. The upper mold 1 is provided with a nesting member 3 and an upper mold cam driver 4, while the lower mold 2 can be slid on a horizontal sliding surface 2b provided separately from the molding surface 2a. A lower mold-shifting cam 5 is provided.

[0006] First, the nesting member 3 is placed at a certain angle with respect to the moving direction of the upper mold 1 (vertical direction in the drawing). It is attached so that it can slide on the joint surface 1b, which is tilted downward to the right in the figure. ing. Although not shown, there is a space between the upper part of the nesting member 3 and the upper mold 1. For example, a spring is inserted to urge the nest member 3 downward.

[0007] At the bottom of the nesting member 3 attached to the upper mold 1 in this way, there is a A protruding base molding convex portion 3c is formed. Including this base molding convex portion 3c A molding surface 3a that constitutes a part of the molding surface 1a of the upper mold 1 is formed on the lower surface of the nesting member 3. has been completed. Further, the lower mold shifting cam is attached to the tip of the base molding convex portion 3c. 5 and an undercut for forming the folded part Wb' of the mounting base part Wb. A shaped recess 3d is formed, and the upper surface following this molded recess 3d has a substantially horizontal surface. A receiving surface 3b is formed on.

[0008] The upper mold cam driver 4 is fixed to the upper mold 1 and moves up and down as one. , the lower part thereof is inclined downward at a predetermined angle to the left in the figure with respect to the moving direction of the upper mold 1. A sliding surface 4a is formed.

[0009] On the other hand, the lower mold shifting cam 5 provided on the lower mold 2 is located under the upper mold cam driver 4. The mounting base part slides to the right in the figure as it is lowered, and the mounting base part The folded part Wb' of Wb is formed, and the upper cam driver 4 is attached to the rear part of the folded part Wb'. An inclined sliding surface 5a is formed corresponding to the inclined sliding surface 4a, and At the lower part of the front side, there is an undercut corresponding to the undercut molding recess 3d of the nesting member 3. A cut-molded recess 5b is formed. Further, a blade portion 5c is formed at the upper mouth of the molded recess 5b, and a blade portion 5c is formed at the bottom of this molded recess 5b. When the molding cam 5 advances to the right in the figure to form the folded part Wb', the folded part Wb' is formed. The end of the portion Wb' can be cut as scrap 9. Also, figure Although not shown, the lower mold shifting cam 5 is biased by a spring in its backward direction (to the left in the figure). When the mold is opened, the upper mold cam driver 4 moves backward and the nested It is configured to be spaced apart from the member 3.

0010 By configuring the upper mold 1 and the lower mold 2 in this way, the trim base material W, the special The mounting base portion Wb is formed in the following manner. First, the above-mentioned predetermined molding material W' is deposited on the molding surface 2a of the lower mold 2 to a predetermined thickness. Layer.

[0011] After setting the molding material W', the upper mold 1 is lowered. At this time, the nesting member 3 Since is biased downward by a spring, its molding surface 3a is aligned with the molding surface 1a of the upper mold 1. It is located below the molding surface 1a of the upper mold 1 and presses the molding material W' in advance of the molding surface 1a of the upper mold 1. do. As the upper mold 1 further descends, the pressing force of the nesting member 3 increases, and the upper mold 1 The molding surface 1a of No. 1 also presses the molding material W'. Here, the nesting member 3 is It is slid in the vertical direction via the joint surface 1b that is inclined to the right in the figure with respect to the moving direction of the upper die 1. Since it is mounted so that it can be ridden, it is possible to press the molding material W' and move it downward. When the upper mold 1 is lowered at the time when the movement is prevented, this nesting member 3 is relatively It will move to the left as shown in the figure. That is, this nesting member 3 is made of molding material W' While pressing, move to the left in the figure as the upper mold 1 descends, and press the nest member 3. The base molding convex portion 3c also presses the molding material W'.

0012 Furthermore, as the upper die 1 descends, the upper die cam driver 4 also descends, and its inclined slide The side surface 4a contacts the inclined slide surface 5a of the lower mold shifting cam 5, and the upper mold 1 is further lowered. As it is lowered, the lower mold shifting cam 5 moves to the upper mold cam via both sliding surfaces 4a and 5a. It is pressed by the driver 4, and therefore moves to the right in the figure, against the spring biasing force. It moves in the direction approaching the child member 3 side.

[0013] In this way, as the upper mold 1 descends, the nesting member 3 and the lower mold shifting cam 5 are moved to a predetermined position. , and press the molding material W' between it and the lower mold 2, so that the nesting member 3 side undercut molding recess 3d and undercut molding recess 5b on the lower mold shifting cam 5 side. During this period, the molding material W' flows and is thermally hardened, thereby forming the mounting base Wb and its A folded portion Wb' is formed.

[0014] Furthermore, at the same time as this molding, the end of the folded part Wb' is connected to the blade part 5c of the lower mold shifting cam 5. The material is cut into scrap 9 by the following.

[0015] Next, when opening the mold, when the upper mold 1 rises, the nesting member 3 does not rise. Move to the right in the figure to remove the molded mounting base part Wb, and then attach it to the upper mold 1. It also rises. Additionally, as the upper mold 1 rises, the upper mold cam driver 4 also rises, and Then, the lower mold shifting cam 5 moves to the left in the figure and separates from the nesting member 3.

[0016] In this way, the nesting member 3 rises after coming off the mounting base part Wb in the horizontal direction. Therefore, the molded trim base material W remains in the lower mold 2, allowing smooth mold opening. The structure is such that Moreover, the cut scrap 9 is used as a nesting member. 3 is placed on the receiving surface 3b of the nesting member 3, that is, the upper mold 1 together with the upper mold 1. The trim base material W is separated from the trim base material W.

[0017]

[Problem that the idea aims to solve]

As described above, according to the conventional mold, the scrap 9 is moved upward together with the upper mold 1. In order to dispose of it, remove it from the receiving surface 3b of the nesting member 3. It was necessary to remove it.

[0018] However, although not shown, the area around the upper mold 1 after opening the mold is for accident prevention purposes. Generally, protective fences or support columns for upper molds are installed. It is not easy to take out the scrap 9 while the mold 1 remains in the upper position. Therefore, the upper mold 1 is lowered again to eject this scrap 9. Ta. In this way, in the past, it was necessary to take extra steps to dispose of scrap, Therefore, the operating rate had to be lowered.

[0019] This invention was devised in view of this problem, and it is easy to use without taking the trouble of taking time. Scraps from molds made of wood-based mat substrates can be disposed of in Its purpose is to provide a processing structure.

[0020]

[Means to solve the problem]

In order to solve the above-mentioned conventional problems, this invention uses a wood-based mold by using an upper mold and a lower mold. In order to form a folded part on the edge of the base material, the side part of the upper mold has a vertical movement of the upper mold. A nesting member interlocked with the upper mold is provided on the upper surface of the lower mold. It moves toward the nesting member in conjunction with the vertical movement of the upper mold via the upper mold cam driver. The folded portion can be formed by moving forward and backward in cooperation with the nesting member. Both have a lower mold collector with a blade that can cut the scrap part at the end of the folded part. In a mold made of a wood mat base material and equipped with a cam, the front surface of the lower molding cam has a a screw for biting and holding the scrap portion when the lower mold shifting cam moves forward; A lap catch claw is provided, and when the mold is opened, the lower mold gathering cam moves backward, allowing the front to move forward. The scrap part is taken out from the upper mold side and remains on the lower mold side. shall be.

[0021]

[Effect]

According to the above configuration, the scrap is eaten by the scrap catch claw at the same time as it is cut. When the mold is opened, the mold is removed from the upper mold as the lower mold shifting cam retreats. is left on the lower mold side.

[0022]

【Example】

Next, an embodiment of the present invention will be described based on FIGS. 1 and 2. In addition, in this example A scrap catching pawl 7 is provided on the lower mold shifting cam 5, and the lower mold 2 is provided with a scrap catch claw 7. The scrap 9 held by the catch claw 7 is brushed off onto the lower mold 2. The structure is equipped with a scrap removal pin 6 to remove the scrap, and other structures require changes. The explanation will be omitted, and the same parts will be given the same reference numerals and explained. FIG. 1 shows the mold in a closed state, and FIG. 2 shows the mold in an open state.

[0023] The cut scrap 9 is placed approximately in the center of the front surface 5d of the lower mold shifting cam 5. A scrap catch claw 7 is attached for holding the scrap. This school The lap catch claw 7 is formed into a substantially cylindrical shape and has a burring claw on one end surface. This burring claw is made to protrude a predetermined amount from the front surface 5d. In this state, it is embedded and fixed in the front surface 5d.

[0024] In addition, this lower mold shifting cam 5 has a horizontal direction extending from its front surface 5d to its rear end surface. An insertion hole 5e having a constant diameter is formed to penetrate through the hole 5e. This insertion hole 5e is for the above-mentioned screw. The catch claw 7 is formed substantially in alignment with the inner circumferential hole of the catch claw 7.

[0025] On the other hand, on the horizontal sliding surface 2b of the lower mold 2 and behind the lower mold shifting cam 5, there is a fixed A fixed block 10 is attached, and a lower mold shifting cam is attached to this fixed block 10. A scrap removal pin 6 that protrudes horizontally toward the 5 side is attached so as not to be movable in its axial direction. It is being This scrap removal pin 6 is formed with a diameter that allows it to be inserted into the insertion hole 5e. It is inserted into the insertion hole 5e at the same time, and when the lower mold shifting cam 5 retreats, the lower It has a length that allows it to protrude from the front surface 5d of the cam 5. The scrap removal pin 6 attached in this way is attached to the lower mold gathering cam 5. is configured to relatively slide within the insertion hole 5e by moving forward and backward. There is. Then, when the lower mold shifting cam 5 reaches the rear end position (the position shown in FIG. 2), The tip of this scrap removal pin 6 protrudes from the inner peripheral hole of the scrap catch claw 7. Then, remove the scrap 9 held by the scrap catch claw 7. It is constructed so that it can be dropped.

[0026] This example is configured as described above, and with this configuration, the following The scrap is then disposed of. As shown in FIG. The mounting base portion Wb of the base material W is molded, and the tip portion of the base molding convex portion 3c is The undercut molding recess 3d formed in the undercut molding recess 3d and the undercut formed in the lower molding cam 5 The folded part Wb' of the mounting base part Wb is undercut between the cut molded concave part 5b. Molded.

[0027] Also, at the same time as the folded portion Wb is formed, a blade portion 5c is formed on the lower mold shifting cam 5. The end of the folded portion Wb' is cut off as a scrap 9. stop Almost at the same time as this cutting, the scrap 9 is inserted by the scrap catch claw 7. It is pressed against the side wall 3e of the lever member 3 and held there by biting. Each of the above operations is performed almost simultaneously as the trim base material W is formed.

[0028] After that, when opening the mold, as shown in Fig. 2, as the upper mold 1 rises, the upper mold cam is opened. The driver 4 rises, and as the upper mold cam driver 4 rises, the lower mold shifting cam 5 retreats. Then, as the lower mold shifting cam 5 retreats, the scrap 9 is From above the receiving surface 3b of the nesting member 3 while being bitten and held by the lap catch claw 7. It is taken out and separated from the upper mold 1 side.

[0029] Furthermore, as the upper mold 1 rises and the lower mold shifting cam 5 retreats, the scrap removal The pin 6 moves relative to the lower molding cam 5, and its tip is attached to the scrap key. It protrudes from the inner circumferential hole of the catch claw 7 and is bitten and held by the scrap catch claw 7. The scrap 9 that has been removed is brushed off onto the lower die 2.

[0030] In this way, according to the configuration of the mold of this example, the scrap 9 is moved upward together with the upper mold 1. It will not be taken away and will definitely remain on the lower mold 2, therefore, The operator can easily discharge this scrap from the mold after opening the mold. It is. Therefore, there is no need to take the trouble to dispose of scrap as in the past. , it is possible to improve the operating rate.

[0031] In addition, because conventionally it took a lot of time to discharge this scrap, it was necessary to remove it every time the molding process was completed. Instead of discharging the scrap, the scrap is left as it is, and the scrap is used for several processes. By taking the time to drain the water as soon as it accumulates, a constant operating rate is ensured. However, according to the scrap processing structure of this example, molded products (door trim base material Since scrap can be easily discharged at the same time as W) is removed, This scrap can be discharged at the end of each molding process without reducing work efficiency. This makes it easy to maintain equipment and ensures that accidents are prevented and quality is ensured. It has the effect of being exposed.

[0032] Furthermore, the scrap processing structure of this example manually handles the scrap that has been thrown off. It is possible to fully automate the scrap processing process, which automatically discharges scrap by appropriate means. That is.

[0033] In addition, in this example, one piece is used for each lower mold gathering cam 5 at one location in FIG. 1 or 2. An example is one with a scrap catch claw 7 and one scrap removal pin 6. However, the scrapping is not limited to this, and each of the lower molding cams at multiple locations can be scrapped. The configuration may include one or more catch claws and scrap removal pins. Furthermore, although the scrap catch claw 7 is illustrated as having a substantially cylindrical shape, This scrap catch claw has a shape that can catch and hold cut scraps. In addition, even if the scrap pin is in the form of a strip, it is fine. It's good.

[0034] Further, in this example, the scrap 9 held by the scrap catch claw 7 Although the configuration is illustrated in which a scrap removal pin 6 is provided to remove scraps, this scrap The configuration may be such that the wrap removal pin 6 is not provided. In this case, the insertion hole 5 e and fixed block 10 are not required.

[0035] The key is to hold the cut scraps with the scrap catch claws. Then, when the mold is opened, this scrap is separated from the upper mold and carried upwards together with the upper mold. It is sufficient that the structure is structured so that it will not be used as a patent, and that it does not go beyond the scope of claims for utility model registration. Various embodiments can be implemented within a wide range of scope.

[0036]

[Effect of the idea]

Since the present invention has the above structure, the cut scraps are The molded product is can be easily ejected when removing the There is no need to take the trouble to waste time discharging crap, improving operating efficiency. I can do it.

[0037]

[Submission date] May 9, 1991

[Procedural amendment 1]

[Name of document to be amended] Specification

[Correction target item name] 0003

[Correction method] Change

[Correction details]

This mold consists of an upper mold 1 and a lower mold 2, and molding surfaces 1a and 2a are formed on opposing surfaces of both molds 1 and 2, respectively, so that the trim base material W can be molded. Furthermore, although not shown, the upper mold 1, which is the back side of the design surface, has a plurality of gas vent holes penetrating it in the vertical direction, and a hot plate for heating both molds 1 and 2 to a predetermined temperature. It is attached.

[Brief explanation of drawings]

FIG. 1 is a partial vertical cross-sectional view of a mold when the mold is closed in accordance with an embodiment of the present invention.

FIG. 2 is a partial vertical cross-sectional view of the mold when the mold is opened.

FIG. 3 is a partial vertical sectional view of a conventional mold when the mold is closed.

FIG. 4 is a partial longitudinal cross-sectional view of the conventional mold when the mold is opened.

FIG. 5 is a longitudinal cross-sectional view of the door trim base material.

[Explanation of symbols]

W Door trim base material W′ molding material Wb Mounting base part Wb′ folded part 1 Upper mold 2 Lower mold 3 Nesting member 4 Upper cam driver 5 Lower mold gathering cam 6 Scrap removal pin 7 Scrap catch claw 9 Scrap

Continuing from the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location // B29K 103:00 B29L 31:58 4F

Claims (1)

[Scope of utility model registration request] 1. In order to form a folded part on the edge of a wood-based mat base material using an upper mold and a lower mold, a nesting member that is linked to the vertical movement of the upper mold is provided on the side of the upper mold;
The upper surface of the lower mold is provided with an upper mold cam driver provided on the upper mold, which moves forward and backward toward the nesting member in conjunction with the vertical movement of the upper mold, and is folded back in cooperation with the nesting member. In a mold made of a wood-based mat base material and equipped with a lower mold-closing cam having a blade part capable of molding the folded part and cutting the scrap part at the end of the folded part, the front surface of the lower mold-closing cam has a , a scrap catch claw is provided for biting and holding the scrap portion when the lower mold shifting cam moves forward, and when the lower mold shifting cam retreats when the mold is opened, the scrap portion is moved toward the upper mold side. A scrap disposal structure in a mold for a wood-based mat base material that is removed from the mold and remains on the lower mold side.